Tomosvaryella hirta Motamedinia, Skevington & Földvari, 2023

Tomosvaryella hirta Motamedinia, Skevington & Földvari sp. nov.

urn:lsid:zoobank.org:act:AF711ADD-C5B6-4879-AD97-B2D8AE57A052

Figs 46A–E View FIGURE 46 , 123 View FIGURE 123 , 153C View FIGURE 153

Diagnosis: This species can be recognized by scattered long dark bristles on scutellum; flattened hind tibia with condensed bristles apically; hind trochanter with a long keel and 3–10 short bristles; sternites 2–3 with different-sized spines, sternite 4 with a long keel in posterior margin; right gonopod with a small projection at inner margin before apex; phallic guide with 3–6 different-sized spines dorso- dorsolaterally in ventral view ( Fig. 46B View FIGURE 46 ); phallus with two downward small spines in lateral view ( Fig. 46D–E View FIGURE 46 ).

Description: MALE: Body length: 3.8–3.9 mm (without head). Thorax. Postpronotum light yellow, with 10– 12 brown bristles in upper margin. Mesonotum (viewed obliquely from front) silvery-brown pollinose, anterior part greyer; scutum with scattered bristles at anterior supra-alar area, extended to posterior and uniseriate rows of intra-alar bristles. Postalar callus dark brown with three dark bristles in upper margin. Scutellum black, silvery pollinose covered with scattered long dark bristles entirely (not posterior margin). Halter, knob pale, stem light brown, base dark. Legs. Mid coxa with 3–5 distinct, long dark bristles and 4–5 long light brown bristles; hind coxa with 2–4 short brown bristles. Coxae, trochanters, femora dark brown, hind femur shining ventrally, knees and basal 1/4 of tibiae yellow (tibiae otherwise brown), tarsomeres light brown ventrally and dark dorsally. Mid trochanter with 2–6 different-sized bristles ventroapically. Hind trochanter silvery pollinose, with a distinct and long keel and 3–10 short bristles ventromedially and ventrobasally; ventrobasal spines absent on fore and mid femur. Hind femur with two rows ventroapical spines. Hind tibia moderately flattened from basal to apical, with a wrinkled indentation in the middle, two rows of short black bristle on anterior and posterior side covered by dense and long dark bristles (longer bristles condensed apically). Hind tarsomeres distinctly flattened, covered by dense dark bristles dorsally and brown bristles ventrally, last hind tarsomere rather rounded, hind metatarsus as long as 2–4 combined; pulvilli shorter than last tarsal segment. Wing. Length: 5 mm. Upper side of basal costal cell with one or two long dark brown bristle and two short light brown bristles. Fourth costal section 1.5–2 times as long as third costal section. Cross-vein r-m at middle of discal cell. 8–10 short dark setulae on tegula. Abdomen. Tergites 1 silvery pollinose with 20–30 long dark bristles, extending from lateral onto dorsal surface, moderately shortened from lateral to dorsal; tergite 4–5 with two gray spots laterally, all tergites with scattered distinct dark bristles. sternite 2 with 3–6 small dark spines in the middle of posterior margin. Sternite 3 with two long spines and sternite 4 with two distinct rectangular-shaped keels along posterior margin. Syntergosternite 8 enlarged, dark brown and grey pollinose. Membranous area long and broad in middle. Genitalia. Genital capsule in dorsal view: epandrium wider than long (MLE:MWE = 0.9). Surstyli small, left surstylus longer and wider than right one, right surstylus with a triangular edge at inner margin before apex ( Fig. 46A View FIGURE 46 ). Genital capsule in ventral view: both gonopods widened, unequal in height, left gonopod longer than left one, right gonopod with a small projection at inner margin before apex; phallic guide with 3–6 different-sized spines dorso- dorsolaterally, one is longer than others; subepandrial sclerite small ( Fig. 46B View FIGURE 46 ); Genital capsule in lateral view: both surstyli rather straight in basal two thirds, curved to sternite in basal third ( Fig. 46D–E View FIGURE 46 ); phallus with two downward small spines; ejaculatory apodeme tube-like, bent, with a bulb in its middle ( Fig. 46C View FIGURE 46 ).

FEMALE: Body length: 3.9 mm. As male except for the following characters. Frons, eyes separated, as wide as the width at antennae; completely silver-grey pollinose on lower 1/3, shiny black only around ocellar triangle, smooth depression in just before ocellar triangle. Enlarged ommatidia silvery shining. Length of bristles on hind tibia shorter than male; last hind tarsomere not rounded (elongated); pulvilli and claws about 1.2–1.5 times as long as last tarsal segment. Abdominal sternites without spines. Ovipositor. Straight in ventral view, straight, in lateral view (yellow piercer, dark brown base), reaching middle of sternite 3; base silvery brown pollinose. LP:LB = 4.1. LDP:LPP = 2.7. ( Fig. 153C View FIGURE 153 ).

Etymology: The specific name is derived from the Latin word ‘hirta’, meaning hairy, referring to bristles on the scutellum and hind tibia.

Examined material: HOLOTYPE: AUSTRALIA: Queensland:Isla Gorge Nat [ional] Park , 25°11’S, 149°58’E, 320m, 4.X.1992, G. Daniels, JSS8906 (1♂, QM) GoogleMaps ; PARATYPES: AUSTRALIA: Queensland: Isla Gorge National Park , 25°11’S, 149°58’E GoogleMaps , 320m, 3.III.1991; 4.X.1992, G. Daniels, JSS8905 , JSS8907 (1♂, 1♀ QM) .

Distribution: Australia (Queensland) ( Fig. 123 View FIGURE 123 ).

Notes: The only known specimens are all from Isla Gorge National Park, a spectacular area of sandstone cliffs and dry sclerophyll forest. This species is genetically most similar to T. millstreamensis sp. nov. (2.2–3.2% pairwise divergence) and T. tribula sp. nov. (2.7–3.2%) (Supplementary file 3).